ACT88430QJ-T
Rev 1.0, 24-Oct-2018
BUCK1 ELECTRICAL CHARACTERISTICS, REGULATOR:
(VIN B1 = 3.3V, TA = 25°C, unless otherwise specified.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Operating Voltage Range
2.7
5.5
V
Configured for 9.375mV steps
Configured for 12.5mV steps
0.6
0.8
3.0
4.0
Output Voltage Range
V
A
Maximum Output Current
4
Low Power Mode Enabled
Regulator Only, No Load (VOUT =
VSET*1.05)
Supply Current, Standby
50
µA
Supply Current, Shutdown
Regulator Disabled
0.1
1
µA
V
Output Voltage Accuracy – PWM
Default output voltage, IOUT = 2A
-1%
-1%
VNOM
1%
Default output voltage, IOUT = 1mA, Average
Ripple Voltage
Output Voltage Accuracy - PFM
Line Regulation
VNOM
0.02
1%
V
Default output voltage, VIN_B1 = 3.3V to 5.5V,
PWM mode
%/V
Load Regulation
Default output voltage, PWM Mode
VOUT_B1 Rising
0.04
93
3
%/A
Power Good Threshold
Power Good Hysteresis
Overvoltage Fault Threshold
Overvoltage Fault Hysteresis
92
94
%VNOM
%VNOM
%VNOM
VOUT_B1 Falling
VOUT_B1 Rising
107.5
110
3
112.5
VOUT_B1 Falling
%VNOM
2.15
2.25
2.36
1.18
Switching Frequency
VOUT_B1 ≥ 20% of VNOM
MHz
1.075
1.125
Configurable in 50us Steps
10% to 90% VNOM
Soft-Start Period – Programmable Range
Soft-Start Period
150
-25
300
485
+25
µs
%
Variation from set point
B1_ILIMSET=00
B1_ILIMSET=01
B1_ILIMSET=10
B1_ILIMSET=11
5.3
4.6
3.8
3.0
Internal High Side Peak Current Limit
(Cycle-by-Cycle) ILIMSET
A
At default ILIMSET
At other set points
-10%
-15%
ILIMSET
ILIMSET
+10%
+15%
Internal High Side Peak Current Limit
(Cycle-by-Cycle) Tolerance
Above ILIMSET = 00
Above ILIMSET = 01
Above ILIMSET = 10
Above ILIMSET = 11
Below ILIMSET = 00
Below ILIMSET = 01
Below ILIMSET = 10
Below ILIMSET = 11
+15%
+15%
+22.5%
+22.5%
+22.5%
+22.5%
-25%
+30%
+30%
Internal High Side Peak Current Limit,
Shutdown Level
+15%
+30%
+12.5%
-17.5%
-17.5%
-17.5%
-15%
+32.5%
-32.5%
-32.5%
-32.5%
-35%
-25%
Internal High Side Peak Current Limit,
IRQ Triggered Level
-25%
-25%
Internal High Side Peak Current Limit
IRQ Signal Deglitch Time
16 consecutive clocks at 2.25MHz
6.78
7.11
7.44
µs
Ω
PMOS On-Resistance
ISW = -1A, VIN_B1 = 3.3V
0.025
0.040
Innovative PowerTM
www.active-semi.com
Copyright © 2016-2018 Active-Semi, Inc.
ActiveSwitcherTM is a trademark of Active-Semi.
I2CTM is a trademark of NXP
11
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
